OSRS Drop Calculator › Tortoise shell

Best way to farm Tortoise shell

All 3 monsters that drop Tortoise shell, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 1 other source isn’t ranked; see why below.

Drop data: Tortoise shell on the OSRS Wiki

Currently fastest method
Tortoise (No riders)
22 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Tortoise (No riders)
Combat lvl 79
10/128 · 1–3
 0.156 26 138 22
Tortoise (With riders)
Combat lvl 92
8/128 · 1–3
 0.125 29 124 16
Warped Tortoise
Combat lvl 121 · Slayer 56
2/64 · 1–3
 0.062 43 84 5.2

Other sources (not ranked)

Mutated Tortoise is a superior slayer monster: it only appears randomly (~1 in 200 kills) while you’re on a slayer task. So it’s not included in the ranking above.

Monster Drops (rarity · quantity) Avg/kill
Mutated Tortoise
Combat lvl 247 · Slayer 56
2/64 · 1–3 (3 rolls)
 0.188
How this is calculated: items/hr = (3600 ÷ seconds per kill) × average items per kill. Each monster's drop lines are listed as the wiki shows them (rarity · quantity); the average adds them all up, each as rarity × average quantity × rolls — so a guaranteed drop plus a rarer bonus drop both count. Drop rates and quantities come from the OSRS Wiki's community-verified drop tables. Seconds-per-kill is an editable estimate based on each monster's hitpoints and defence — your real speed depends on your stats and gear, so adjust it and your edits are remembered on this device. Rates marked ~ are approximate on the wiki.